Socket wrench



May 7, 1929. w, FlsHER 1,712,427

SOCKET WRENCH I Filed April 29, 1927 g Ha t-5::

A TTORNEY.

Patented May 7, 1929.

PATENT orrlce. 4

WILLIAM. FIElHL JR, OF ALTOONA; PENNSYLVAJFIIA, ASSIGN'OR O ONE-THIRD TO ROBERT D. OF JUNIAI'A, FENNSYLVAINIA.

SOCKET WRENCH.

Application filed April 29, 1927. Serial No. 187,639.

The object of the invention is to provide a simple and e'llective wrench of the socket type readily and quickly adjustable to fit nuts and bolt heads throughout a reasonable working range; and to provide a construction in which the adjustment ieature may in itself provide the advantages usually secured with a ratchet under conditions where the working space for the handle or turning element is suificient.

With this object in view, the invention con sists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawings, wherein:

Figure 1 is an elevational view of one form of the invention Figure 2 is a central vertical sectional view on. the plane indicated by the line 2-2 of Figure 1.

Figure 3 is a top plan view of the structure shown in Figure 1.

Figures 4 and 5 are respectively transverse sectional views on the planes indicated by the lines it-4c and 5-5 of Figure 2.

Figure 6 is an elevational view, partly broken away, of a modified form.

Figure 7 is a vertical sectional view on the plane indicated by the line 7-7 of Figure 6.

Figure 8 is a bottom plan view of the mov able jaw of the construction illustrated in Figure (3.

lhe fixed and moving jaw elements 1.0 and 11 are complemental, the former being an in tegral extension from the body 12 and the latter an integral extension from the slide 13. The slide is mounted for sliding movement in a guideway ll formed in the body and at its upper end is provided with lateral ribs 15 engaging in undercut slots at the upper end of the guideway. The upper portion of the slide is provided with a transverse slot 16 in which is engaged the stud 17, the latter being an integral extension from the actuator 18 which is of cylindrical form and seated in a counterbore 19 in the body 12. The slot 16 is of a depth less than the thickness of that portion of the slide in which it is formed and the stud 17 is of a length cor responding to this depth. A smaller slot 20, however, is formed in the slide at the bottom of the slot 16 and extends through the slide, an extension stud 21 formed on the stud l7 and concentric therewith extending through the slot and receiving on its lower end the-nut 22 hearing against the under lace oi? the slide. By this construction, the actuator 18 is held in the countcrbore and being capable of rotary movement therein and the stud 17 being disposed eccentrically of the actuator, the rotation of the latter will perlorce move the jaws 10 and 11 toward and away from each other to secure the proper adjustment of the two.

The actuator is formed with a socket- 23 in which may be engaged an ordinary pin wrench with an angular turn at one extremity or any acceptable form of ratchet handle.

When the wrench is placed on the nut, the turning movement imparted to the handle will be first transmitted to the actuator 18 and thence to the movable jaw to bring both jaws 1nto gripping engagement with the nut or bolt head and further movement of the handle will result in turning movement to the nut or bolt head. If desired, it is not necessary that continual turning movement be imparted to the handle, since the latter may be moved backward after having been moved forward certain angular distance, when the jaws will be separated, thus permitting the wrench as a whole to be turned around the nut to secure a new grip to be followed by a second turning movement of the handle. In this way the adjustment feature of the device may be made to function the same as a ratchet but will of course require space for a longer angular movement of the handle than is the case with the ratchet.

In the modification shown in Figure 6, the jaw elements are the same as in the other form and the slide and body elements 13 and 12 are substantially the same as the corresponding parts in the other form. The ribs 15*", however, at the upper end of the slide 1.3 are V-shaped at their lower edges as indicated. at 24 and the slots in the body in which they are engaged are correspondingly shaped. This construction effects an interlock be tween the ribs l5 and their slots and thus effectively prevents any spreading of the side walls of the body defining the guideway for the slide 13.

The slot 16 in the movable jaw, instead of being made straight, is of arcuate form but this does not extend through the slide portion of the jaw as in the first form. The stud 17 011 the actuator 18- traverses the integral ears 25 formed on the stationary jaw element and pressed downinto overlapping relation with the upper end of the actuator after the latter has been positioned. Prior to the insertion of the actuator in the coun terbore, the ears 25am disposed in upstanding position as indicated in dotted lines in V Figure 6, being peaned or pressed down into their final retaining positions.

The lnvention having been described, what is claimed as new and useful is:

1. A wrench comprising fixed and movable jaw elements of which the latter is slidably mounted in the former, the movable jaw element having a slide provided on opposite sides with ribs V-shaped at their lower edges and en aging correspondingly shaped slots in the fixed jaw element to constitute an interlock between the two elements and prevent spreading of the side Walls of the fixed jaw element, and an actuator mounted in the fixed aw element and having 0 )erative connection with the movable jaw element.

2. A wrench comprising fixed and movable jaw elements of which the latter is slidahly mounted in the former, said fixed jaw element having a cylindrical portion formed with a counterbore, and an actuator of cylindrical form seated in said counterbore and formed with a socket constituting a wrench seat, the actuator having rotary movement in said counterbore and having a pin and slot connection with the movablejmv.

In testimony whereof he aflixes his signature.

WILLIAM H. FISHER. 

